So I have been doing a project on nrf52840dk, So I have built a custom bootloader for it as well, I have been trying to add the custom bootloader with the code in my nrf52840dongle using nrf52840dk (3.0.0). My nrf2840dl is not detecting the targeted board. I have been trying to program it using nrf connect desktop->programmer .. Wire Connections :- SWDIO, SWCLK, VDD, GND Yes, even tried matching the voltage between the two boards by setting the REGOUT pin in the code, yet the result was negative. My nrf52840dk is not detecting the targeted board i.e (nrf52840donggle) so how can I get this fixed. And yes I don't want to use a JTAG debugger for this operations!!!!

nrf52840dk as a debugger fr nrf52840dongle(SoC)

So I have been doing a project on nrf52840dk, So I have built a custom bootloader for it as well, I have been trying to add the custom bootloader with the code in my nrf52840dongle using nrf52840dk (3.0.0). My nrf2840dl is not detecting the targeted board. I have been trying to program it using nrf connect desktop->programmer..

Wire Connections :-

SWDIO,
SWCLK,
VDD,
GND

Yes, even tried matching the voltage between the two boards by setting the REGOUT pin in the code, yet the result was negative. My nrf52840dk is not detecting the targeted board i.e (nrf52840donggle) so how can I get this fixed.

And yes I don't want to use a JTAG debugger for this operations!!!!

0 Turbo J 12 hours ago

Careful: The VDD pin is an input into the DK - it needs this as reference voltage.

The SWD output plug is supposed to use a detection pin in order to auto-switch from the DK MCU to the externally connected one. They might be referenced in the hardware manual chapter for the debug out connector(s).
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